Primary Antibodies are intended for use on tissue sections. Polyclonal antibodies are provided as whole serum, Ig fractions, F(ab')2 fragments or affinity isolated. Monoclonal antibodies are generally provided as tissue culture supernatants or purified from culture supernatants. FLEX RTU GA-series is designed for the Dako Omnis platform, the IR-series is designed for Autostainer Link 48 and the IS-series is designed for Dako Autostainer instruments. Antibody Cocktails will provide a two-color staining reaction on the same tissue section. Multipurpose Antibodies are concentrated polyclonal antibodies usable for techniques besides immunohistochemistry. Secondary Antibodies are primarily utilized for amplification of the antibody/antigen reaction. Control Reagents are well-suited as qualitative negative controls for the primary antibodies. All antibody reagents for immunohistochemistry are in liquid form and contain an antimicrobial agent.